datagrade: Data Quality Assessment on the ISO/IEC 25012 Model

A single-call data quality assessment scoring a data set on the five inherent characteristics of the ISO/IEC 25012 data quality model (accuracy, completeness, consistency, credibility and currentness) through the fifteen quality properties beneath them, ISO/IEC (2008) <https://www.iso.org/standard/35736.html>. Each property is measured as a ratio of counted data items, the form ISO/IEC 25024 measurement functions take, ISO/IEC (2015) <https://www.iso.org/standard/35749.html>. Six properties are computable from a table alone; the rest compare the data against expectations declared through a specification object, and are reported as not applicable rather than approximated when none is supplied. Also reports missing-data patterns, duplicates, redundant columns, outliers, multicollinearity and distributional deviations, and returns a structured object with plots rather than console text alone. The statistics implement the methodology of the author's master's dissertation, Demirhan (2024) "Assessing Data Quality Management Issues in Open-Sourced Data Sets with Statistical Methodology" <https://halukdemirhan.com/assets/msc-thesis-haluk-demirhan-public.pdf>.

Version: 0.2.0
Depends: R (≥ 4.1.0)
Imports: cli, ggplot2 (≥ 3.4.0), stats, tools, utils
Suggests: knitr, randomForest, rmarkdown, readxl, testthat (≥ 3.0.0)
Published: 2026-10-29
DOI: 10.32614/CRAN.package.datagrade (may not be active yet)
Author: Omer Haluk Demirhan [aut, cre]
Maintainer: Omer Haluk Demirhan <hlk01dn at gmail.com>
BugReports: https://github.com/ohalukdemirhan/datagrade/issues
License: MIT + file LICENSE
URL: https://github.com/ohalukdemirhan/datagrade
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: datagrade results

Documentation:

Reference manual: datagrade.html , datagrade.pdf
Vignettes: Getting started with datagrade (source, R code)
Deviations from the dissertation (source, R code)
Methodology: every formula, stated (source, R code)
Scalability: 54 thousand to 10 million rows (source, R code)

Downloads:

Package source: datagrade_0.2.0.tar.gz
Windows binaries: r-devel: not available, r-release: datagrade_0.2.0.zip, r-oldrel: not available
macOS binaries: r-release (arm64): datagrade_0.2.0.tgz, r-oldrel (arm64): datagrade_0.2.0.tgz, r-release (x86_64): datagrade_0.2.0.tgz, r-oldrel (x86_64): datagrade_0.2.0.tgz

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